Evaluation of fisheries management strategies using a biotic integrity index in floodplain lakes in the lower Solimões River, Amazonas, Brazil

Fish diversity of floodplain lakes on the lower stretch of the Solimões river.

The fish community of the Solimões floodplain lakes was studied by bimonthly samples taken from May 2001 to April 2002. These were carried out at lakes Maracá (03 degrees 51'33"S, 62 degrees 35'08,6"W), Samaúma (03 degrees 50'42,1"S, 61 degrees 39'49,3"W), and Sumaúma and Sacambú (03 degrees 17'11,6"S and 60 degrees 04'31,4"W), located between the town of Coari and the confluence of the Solimõe...

Subsistence hunting of Cuniculus paca in the middle of the Solimões River, Amazonas, Brazil.

Ungulates, large primates and caviomorfs are cited by Amazonian hunters as preferred species. In this research, paca (Cuniculus paca) hunting was investigated in relation to water levels and the lunar cycle. In eight years of monitoring in the Amanã Sustainable Development Reserve, the killing of 625 pacas was registered in five monitored communities. Paca hunting took place mainly at night and...

Mansonella ozzardi in Amazonas, Brazil: prevalence and distribution in the municipality of Coari, in the middle Solimões River.

This study investigated some epidemiological aspects of the Mansonella ozzardi in municipality of Coari, Amazonas. Clinical symptoms were correlated with the filarial infection and the parasitic infection rates (PIR) were estimated in simuliid vectors. The general M. ozzardi human prevalence rate was 13.3% (231/1733), of which 10.2% (109/1069) were from the urban area and 18.4% (122/664) from t...

Effects of fisheries management on fish communities in the floodplain lakes of a Brazilian Amazonian Reserve

We compared fish abundance, diversity and species composition between lakes open (fished) and closed (no-take) to fishing activities in Mamirauá Sustainable Development Reserve in the Central Brazilian Amazon, in order to investigate potential influences of the common-based management. We sampled 1483 fishes from 70 species through gillnet fishing during the low-water season, in seven fished an...

Management Strategies for Large River Floodplain Lakes Undergoing Rapid Environmental Changes